Nikolay Sivov : combase: Clarify stream data format used by FT marshaler.
Module: wine Branch: master Commit: ecd8fdfb389907f05f4735f70af9172093b12eab URL: https://source.winehq.org/git/wine.git/?a=commit;h=ecd8fdfb389907f05f4735f70... Author: Nikolay Sivov <nsivov(a)codeweavers.com> Date: Thu Oct 28 14:22:56 2021 +0300 combase: Clarify stream data format used by FT marshaler. Signed-off-by: Nikolay Sivov <nsivov(a)codeweavers.com> Signed-off-by: Huw Davies <huw(a)codeweavers.com> Signed-off-by: Alexandre Julliard <julliard(a)winehq.org> --- dlls/combase/marshal.c | 56 ++++++++++++++++------------------------------ dlls/ole32/tests/marshal.c | 8 +++++++ 2 files changed, 27 insertions(+), 37 deletions(-) diff --git a/dlls/combase/marshal.c b/dlls/combase/marshal.c index 51b4ce24115..f3ea3fcad50 100644 --- a/dlls/combase/marshal.c +++ b/dlls/combase/marshal.c @@ -271,6 +271,12 @@ static HRESULT WINAPI ftmarshaler_GetUnmarshalClass(IMarshal *iface, REFIID riid return S_OK; } +union ftmarshaler_data +{ + UINT64 value; + IUnknown *object; +}; + static HRESULT WINAPI ftmarshaler_GetMarshalSizeMax(IMarshal *iface, REFIID riid, void *pv, DWORD dest_context, void *pvDestContext, DWORD mshlflags, DWORD *size) { @@ -283,7 +289,7 @@ static HRESULT WINAPI ftmarshaler_GetMarshalSizeMax(IMarshal *iface, REFIID riid copied between the apartments */ if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX) { - *size = sizeof(mshlflags) + sizeof(pv) + sizeof(DWORD) + sizeof(GUID); + *size = sizeof(mshlflags) + sizeof(union ftmarshaler_data) + sizeof(GUID); return S_OK; } @@ -307,30 +313,24 @@ static HRESULT WINAPI ftmarshaler_MarshalInterface(IMarshal *iface, IStream *str copied between the apartments */ if (dest_context == MSHCTX_INPROC || dest_context == MSHCTX_CROSSCTX) { - void *object; - DWORD constant = 0; + union ftmarshaler_data data; GUID unknown_guid = { 0 }; - hr = IUnknown_QueryInterface((IUnknown *)pv, riid, &object); + data.value = 0; + hr = IUnknown_QueryInterface((IUnknown *)pv, riid, (void **)&data.object); if (FAILED(hr)) return hr; /* don't hold a reference to table-weak marshaled interfaces */ if (mshlflags & MSHLFLAGS_TABLEWEAK) - IUnknown_Release((IUnknown *)object); + IUnknown_Release(data.object); hr = IStream_Write(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; - hr = IStream_Write(stream, &object, sizeof(object), NULL); + hr = IStream_Write(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; - if (sizeof(object) == sizeof(DWORD)) - { - hr = IStream_Write(stream, &constant, sizeof(constant), NULL); - if (hr != S_OK) return STG_E_MEDIUMFULL; - } - hr = IStream_Write(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_MEDIUMFULL; @@ -346,9 +346,8 @@ static HRESULT WINAPI ftmarshaler_MarshalInterface(IMarshal *iface, IStream *str static HRESULT WINAPI ftmarshaler_UnmarshalInterface(IMarshal *iface, IStream *stream, REFIID riid, void **ppv) { + union ftmarshaler_data data; DWORD mshlflags; - IUnknown *object; - DWORD constant; GUID unknown_guid; HRESULT hr; @@ -357,32 +356,23 @@ static HRESULT WINAPI ftmarshaler_UnmarshalInterface(IMarshal *iface, IStream *s hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_READFAULT; - hr = IStream_Read(stream, &object, sizeof(object), NULL); + hr = IStream_Read(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_READFAULT; - if (sizeof(object) == sizeof(DWORD)) - { - hr = IStream_Read(stream, &constant, sizeof(constant), NULL); - if (hr != S_OK) return STG_E_READFAULT; - if (constant != 0) - FIXME("constant is 0x%x instead of 0\n", constant); - } - hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_READFAULT; - hr = IUnknown_QueryInterface(object, riid, ppv); + hr = IUnknown_QueryInterface(data.object, riid, ppv); if (!(mshlflags & (MSHLFLAGS_TABLEWEAK | MSHLFLAGS_TABLESTRONG))) - IUnknown_Release(object); + IUnknown_Release(data.object); return hr; } static HRESULT WINAPI ftmarshaler_ReleaseMarshalData(IMarshal *iface, IStream *stream) { + union ftmarshaler_data data; DWORD mshlflags; - IUnknown *object; - DWORD constant; GUID unknown_guid; HRESULT hr; @@ -391,21 +381,13 @@ static HRESULT WINAPI ftmarshaler_ReleaseMarshalData(IMarshal *iface, IStream *s hr = IStream_Read(stream, &mshlflags, sizeof(mshlflags), NULL); if (hr != S_OK) return STG_E_READFAULT; - hr = IStream_Read(stream, &object, sizeof(object), NULL); + hr = IStream_Read(stream, &data, sizeof(data), NULL); if (hr != S_OK) return STG_E_READFAULT; - if (sizeof(object) == sizeof(DWORD)) - { - hr = IStream_Read(stream, &constant, sizeof(constant), NULL); - if (hr != S_OK) return STG_E_READFAULT; - if (constant != 0) - FIXME("constant is 0x%x instead of 0\n", constant); - } - hr = IStream_Read(stream, &unknown_guid, sizeof(unknown_guid), NULL); if (hr != S_OK) return STG_E_READFAULT; - IUnknown_Release(object); + IUnknown_Release(data.object); return S_OK; } diff --git a/dlls/ole32/tests/marshal.c b/dlls/ole32/tests/marshal.c index 891df59c54b..e05ed937df2 100644 --- a/dlls/ole32/tests/marshal.c +++ b/dlls/ole32/tests/marshal.c @@ -3181,6 +3181,7 @@ static void test_freethreadedmarshaldata(IStream *pStream, MSHCTX mshctx, void * static void test_freethreadedmarshaler(void) { + DWORD size, expected_size; HRESULT hr; IUnknown *pFTUnknown; IMarshal *pFTMarshal; @@ -3201,6 +3202,13 @@ static void test_freethreadedmarshaler(void) /* inproc normal marshaling */ + size = 0; + expected_size = sizeof(DWORD) /* flags */ + sizeof(UINT64) + sizeof(GUID); + hr = IMarshal_GetMarshalSizeMax(pFTMarshal, &IID_IClassFactory, &Test_ClassFactory, MSHCTX_INPROC, + NULL, MSHLFLAGS_NORMAL, &size); + ok(hr == S_OK, "Unexpected hr %#x.\n", hr); + ok(size == expected_size, "Unexpected marshal size %u, expected %u.\n", size, expected_size); + hr = IMarshal_GetUnmarshalClass(pFTMarshal, &IID_IClassFactory, &Test_ClassFactory, MSHCTX_INPROC, NULL, MSHLFLAGS_NORMAL, &clsid); ok_ole_success(hr, IMarshal_GetUnmarshalClass);
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Alexandre Julliard